Improvement in weather-strips



NITED STATES ELIAS T. INGALLS, OF HAVERHILL, MASSACHUSETTS.

IMPROVEMENT IN WEATHER-STRIPS.

Specification forming part of Letters Patent No. 192,371, dated June 26,1877 application filed January 31, 1877.

To all whom it may concern:

Be it known that I, ELIAS T. INGALL's, ot' Haverhill, in the county ofEssex and State of Massachusetts, have invented an ImprovedWeather-Strip for Doors, Sash, 800., of which the following is aspecification:

This invention relates to weather-strips for doors and sash; andconsists in a yielding or elastic metallic strip suitably attached tothe door, or casing, or sash at one edge, its other edge being free toadapt itself to the surface over which it moves.

Weather strips are commonly made of fibrous material or india-rubber,such strips being made to fill up or stop the openings between the doorsand casings or sashes and frames.

The rubber, in practice, loses its elasticity, changes its conditionwith age, and according to varying temperature, as heat or cold.

In this my invention I employ an elastic metallic strip having but aslight movement. Consequently its elasticity remains unaffected and itis not subject to change by age or climate. This metallic strip usedwith a door yields gradually as the door is closed, and serves as aspring to arrest the shock or concussion of the door against the casingor jamb, and also acts as a packing. The free edge of the strip bearingagainst the casing, frame, or door, serves as a packing to prevent thepassage of air or water, and being free to yield, yet havingconsiderable rigidity, it readily adapts itself to the space it isdesigned to stop.

Figure 1 represents the invention applied to a door, the casing abovethe door being in section.

The drawing represents the elastic or spring metal strip it applied indifferent positions with relation to the door b' and its surroundingcasing. At the right and left of Fig. 1 the strips are shown as securedto the casing, and the free ends extend in opposite directions. The oneat the right extends toward the front of the door, and the one at theleft toward the jamb. The strip will preferably be attached to the doorat top and bottom. It is shown attached at top in Fig. 1.

With a spring metallic strip, as shown, the door, as it is closed, willgradually straighten the strip, moving its free end from the positionshown in the drawing to a position near er the casing or door-frame, andthe space, be it more or less, will be efiectually closed, for the freelongitudinal edge of the strip will press firmly against the door edgeas the latter crowds it back.

Besides packing the door, the strip acts as a spring to receive andcushion the edge of the door as it comes in place against the por- Lions0 c of the casing.

The strips for the vertical portions of the door are most out of the waywhen attached to the casing.

A thin elastic metallic strip may be used for a great length of timewithout injurious wear. It is more durable and cheaper thanindia-rubber.

The weather-strip has one straight edge to be applied to the casing orother fiat surface, and at or near its center it is curvedlongitudinally throughout its length, thereby causing the free edge ofthe strip to stand out away from the casing or other part to which thestraight edge is secured.

I am aware that windows have been provided with guides covered on twosides with fiat strips of metal, and adapted to fit into. and tillgrooves in the edges of the sashes, and I hereby disclaim suchconstruction as not in anywise being of 'myinvention; but

What I claim is- The combination, with the door, of a sheetmetalspring-strip attached at one edge only, and adapted to operate betweenthe door and its casing to relieve the door from shock when beingclosed, substantially as described.

in testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ELIAS r. INGALLS.

' Witnesses G. W. GREGORY, E. O. PERKINS.

'TENT Qrrrou

